/* a标签的基础样式 */
a {
  text-decoration: none;
  color: #333;
}

/* 版心的样式 */
.container {
  width: 1200px;
  margin-right: auto;
  margin-left: auto;
}

/* 清除浮动的样式 */
.clearfix:after, .clearfix:before {
  content: " ";
  display: table;
}

clearfix:after {
  height: 0;
  line-height: 0;
  visibility: hidden;
  clear: both;
}

/* 封装一个按钮样式 */
.btn {
  height: 46px;
  padding: 0 24px;
  border: none;
}

.btn-round {
  border-radius: 23px;
}

.btn-large.btn-round {
  border-radius: 25px;
}

.btn-large {
  height: 50px;
}

.btn-blue {
  background: #165DF5;
  color: #fff;
}